27542480 has 80 divisors (see below), whose sum is σ = 73923840. Its totient is φ = 9348096.

The previous prime is 27542479. The next prime is 27542483. The reversal of 27542480 is 8424572.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27542483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76541 + ... + 76899.

It is an arithmetic number, because the mean of its divisors is an integer number (924048).

Almost surely, 2^27542480 is an apocalyptic number.

27542480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27542480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36961920).

27542480 is an abundant number, since it is smaller than the sum of its proper divisors (46381360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27542480 is a wasteful number, since it uses less digits than its factorization.

27542480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 27542480 is about 5248.0929869811. The cubic root of 27542480 is about 301.9958773175.

The spelling of 27542480 in words is "twenty-seven million, five hundred forty-two thousand, four hundred eighty".